Re: [PATCH v9 12/22] s390: vfio-ap: sysfs interfaces to configure control domains

[Pierre Morel]

On 23/08/2018 12:25, Cornelia Huck wrote:
> On Wed, 22 Aug 2018 15:16:19 -0400
> Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote:
>
> > One of the things I suggested in a private conversation with Christian
> > earlier
> > today was to provide an additional rw sysfs attribute - a boolean - that
> > indicates
> > whether all usage domains should also be control domains. The default
> > could be
> > true. This would allow one to configure guests with usage-only domains
> > as well
> > as satisfy the convention.
>
> Would this additional attribute then control "add usage domains to the
> list of control domains automatically", or "don't allow to add a usage
> domain if it has not already been added as a control domain"?
>
> One thing I'm still unsure about is how libvirt comes into the picture
> here. Will it consume the setting, or actively manipulate it?
>
> [In general, I'm not very clear about how libvirt will interact with the
> whole infrastructure...]

When I read you it convince me that it is not wise to change anything
that has been already discuss and could impact the Libvirt.

Regards,
Pierre

--
Pierre Morel
Linux/KVM/QEMU in BÃblingen - Germany